Executive
Summary
1.1 Background
1.2 Scope of Report
1.3 Organization Structure
1.4 Summary of Construction Works
2.1 Air quality
2.2 EM&A Site Inspection
2.3 Landfill Gas Hazard Monitoring
2.4 Waste Management Status
2.5 Environmental Licenses and Permits
2.6 Implementation Status of Environmental Mitigation Measures
2.7 Summary of Exceedances of the Environmental Quality Performance Limit
2.8 Summary of Complaints, Notification of Summons and Successful
Prosecutions
3.1 Construction Activities for the Coming Month
3.2 Key Issues for the Coming Month
4 Conclusions and recommendations
4.1 Conclusions
List of Appendices
Appendix A Project Organization for Environmental Works
Appendix B Construction
Programmes
Appendix C Implementation
Schedule of Environmental Mitigation Measures (EMIS)
Appendix D Summary
of Action and Limit Levels
Appendix E Event
Action Plan
Appendix F Monthly
Summary of Waste Flow Table
Under Contract
No. HY/2017/10, Gammon Construction Limited (GCL) is commissioned by the
Highways Department (HyD) to undertake Northern Connection Tunnel Buildings,
Electrical and Mechanical Works of the Tuen Mun – Chek Lap Kok Link Project
(TM-CLK Link Project) while AECOM Asia Company Limited was appointed by HyD as the
Engineer. For implementation of the
environmental monitoring and audit (EM&A) programme under the Contract,
ERM-Hong Kong, Limited (ERM) has been appointed as the Environmental Team (ET)
in accordance with Environmental Permit
No. EP-354/2009/A. Ramboll Hong Kong Ltd. was employed by HyD as
the Independent Environmental Checker (IEC) and Environmental Project Office
(ENPO). Subsequent applications for
variation of environmental permits (VEP), EP-354/2009/B, EP-354/2009/C and EP-354/2009/D, were granted on 28 January 2014, 10 December 2014
and 13 March 2015, respectively.
The construction phase of the Project commenced on 7 June 2018 and will
tentatively be completed by 2021. The
impact monitoring of the EM&A programme, including air quality and
environmental site inspections, were commenced on 7 June 2018.
This is the Fourth Monthly EM&A report presenting the EM&A works
carried out during the period from 1 to 30 September 2018 for the Contract No. HY/2017/10 Northern Connection
Tunnel Buildings, Electrical and Mechanical Works
(the “Project”) in accordance with the Updated EM&A Manual of the TM-CLK
Link
Project. As informed by the Contractor,
major activities in the reporting period included:
Land-based
Works
·
Bar bending, timber formwork and concreting at Toll Control
Building;
·
Architectual, Builder’s Work and Finishing and Electrical
and Mechanical Works at Ventilation Plant Room;
·
Electrical and Mechanical
Works
at Northern Ventilation Building;
·
Socket H-piling at Administration Building;
·
Additional land ground investigation (GI) and socket
H-piling at Maintainence Depot, trial pits and laboratory testing.
A summary of monitoring and audit activities conducted
in the reporting period is listed below ([1]):
24-hour TSP Monitoring 9
sessions
1-hour TSP Monitoring 9
sessions
Joint Environmental Site Inspection 4
sessions
Summary of Breaches of Action/Limit Levels
Breaches of Action and Limit Levels
for Air Quality
Two (2) Action Level and one (1) Limit Level exceedances for 1-hour TSP
were recorded by the Environmental Team of Contract No. HY/2012/08 during the reporting period.
Environmental Complaints, Non-compliance & Summons
There was no environmental complaint, notification of summons or
successful prosecution recorded in the reporting period.
Reporting Change
There was no reporting change in the reporting period.
Upcoming Works for the Next Reporting Month
Works to be undertaken in the next monitoring period of October 2018
include the following:
Land-based
Works
·
Bar bending, timber formwork and concreting at Toll
Control Building;
·
Architectual, Builder’s Work and Finishing and Electrical
and Mechanical Works at Ventilation Plant Room;
·
Electrical and Mechanical
Works
at Northern Ventilation Building;
·
Socket H-piling at Administration Building;
·
Socket H-piling at Maintenance Depot; and
·
Additional land ground investigation (GI) at Fire
Services Department Building and Customs and Excise Department Building.
Future Key Issues
Potential environmental impacts arising from the above upcoming
construction activities in the next reporting month of October 2018 are mainly
associated with dust and waste management issues.
According to the findings of the Northwest New Territories (NWNT)
Traffic and Infrastructure Review conducted by the Transport Department, Tuen
Mun Road, Ting Kau Bridge, Lantau Link and North Lantau Highway would be
operating beyond capacity after 2016.
This forecast has been based on the estimated increase in cross boundary
traffic, developments in the Northwest New Territories (NWNT), and possible
developments in North Lantau, including the Airport developments, the Lantau
Logistics Park (LLP) and the Hong Kong – Zhuhai – Macao Bridge (HZMB). In order to cope with the anticipated traffic
demand, two new road sections between NWNT and North Lantau – Tuen Mun – Chek
Lap Kok Link (TM-CLKL) and Tuen Mun Western Bypass (TMWB) are proposed.
An Environmental Impact Assessment (EIA) of TM-CLKL (the Project) was
prepared in accordance with the EIA Study Brief (No. ESB-175/2007) and the Technical Memorandum of the Environmental
Impact Assessment Process (EIAO-TM). The EIA Report was submitted under the
Environmental Impact Assessment Ordinance (EIAO) in August 2009. Subsequent to the approval of the EIA Report
(EIAO Register Number AEIAR-146/2009), an Environmental Permit (EP-354/2009)
for TM-CLKL was granted by the Director of Environmental Protection (DEP) on 4
November 2009, and EP variation (VEP) (EP-354/2009/A) was issued on 8 December
2010. Subsequent applications for
variation of environmental permits (VEPs), EP-354/2009/B,
EP-354/2009/C and EP-354/2009/D,
were granted on 28 January 2014, 10 December 2014 and 13 March 2015,
respectively.
Under Contract
No. HY/2017/10, Gammon Construction Limited (GCL) is commissioned by the
Highways Department (HyD) to undertake the Northern Connection Tunnel Buildings,
Electrical and Mechanical Works of TM-CLKL while AECOM Asia Company Limited was
appointed by HyD as the Engineer. For
implementation of the environmental monitoring and audit (EM&A) programme
under the Contract, ERM-Hong Kong, Limited (ERM) has been appointed as the
Environmental Team (ET). Ramboll Hong
Kong Ltd. was employed by HyD as the Independent Environmental Checker (IEC)
and Environmental Project Office (ENPO).
The construction phase of the Contract commenced on 7 June 2018 and will
be tentatively completed by 2021. The
impact monitoring phase of the EM&A programme, including air quality and
environmental site inspections, commenced on 7 June 2018.
The general layout plan of the Contract components is presented in Figures 1.1 & 1.2a to c.
The organization structure of the Contract
is shown in Appendix A. The key personnel contact names and contact
details are summarized in Table 1.1
below.
Table 1.1 Contact Information of Key Personnel
Party |
Position |
Name |
Telephone |
Fax |
HyD (Highways Department) |
Project Coordinator |
Joseph Lee |
2762 4958 |
3188 6614 |
|
Senior Engineer |
Cheng Pan |
2762 3383 |
3188 6614 |
ER (AECOM Asia Company Limited) |
Principle Resident Engineer |
S. W. Fok |
2293 6200 |
2293 6300 |
|
Resident Engineer |
Desmond Fung |
2293 6200 |
2293 6300 |
ENPO / IEC (Ramboll Hong Kong Ltd.) |
ENPO Leader |
Y.H. Hui |
3465
2850 |
3465 2899 |
IEC |
Dr. F.C. Tsang |
3465
2851 |
3465 2899 |
|
Contractor (Gammon Construction Limited) |
Site Agent |
Kenneth Tai |
9039 4723 |
- |
Environmental Officer |
Max Poon |
9103 6303 |
- |
|
|
|
|
|
|
ET (ERM-HK) |
ET Leader |
Dr. Jasmine Ng |
2271 3311 |
2723 5660 |
The construction phase of the Contract commenced on 7 June 2018. The three-month rolling construction
programme is shown in Appendix
B.
As informed by the Contractor, details of the major works carried out in
this reporting month are listed below:
Land-based
Works
·
Bar bending, timber formwork and concreting at Toll
Control Building;
·
Architectual, Builder’s Work and Finishing and Electrical
and Mechanical Works at Ventilation Plant Room;
·
Electrical and Mechanical
Works
at Northern Ventilation Building;
·
Socket H-piling at Administration Building;
·
Additional land ground investigation (GI) and socket
H-piling at Maintainence Depot, trial pits and laboratory testing.
The locations of
the construction activities are shown in Figure
1.3. The Environmental Sensitive
Receivers in the vicinity of the Project are shown in Figure 1.4.
Figure 1.3 Locations of Major Construction
Activities in the Reporting Month
The EM&A programme required environmental monitoring for air quality
and environmental site inspections for air quality, water quality and waste
management. The EM&A requirements
and related findings for each component are summarized in the following
sections
In accordance with the Updated EM&A Manual and the Enhanced TSP
Monitoring Plan, impact 1-hour TSP monitoring was conducted three (3) times
every six (6) days and impact 24-hour TSP monitoring was carried out once every
six (6) days when the highest dust impact was expected. 1-hr and 24-hr TSP monitoring frequency was
increased to three times per day every three days and daily every three days,
respectively, as excavation works for launching shaft under Contract No. HY/2012/08 Tuen Mun-Chek Lap
Kok Link – Northern Connection Sub-sea Tunnel Section commenced on 24
October 2014.
Results of air quality monitoring were adopted from
the published EM&A data of Contract
No. HY/2012/08 Tuen Mun-Chek Lap Kok Link – Northern Connection Sub-sea Tunnel
Section ([2]).
The locations of the monitoring stations overlapped
with Contract No.
HY/2012/08 are shown in Figure
2.1 and presented in Table 2.1.
Table
2.1 Locations of Impact Air Quality
Monitoring Stations and and its Corresponding Monitoring Requirements
Monitoring Station |
Monitoring Dates |
Location |
Description |
Parameters
& Frequency |
ASR1 |
1, 4, 7, 10,
13, 19, 22, 25 and 28 September 2018 |
Tuen Mun
Fireboat Station |
Office |
TSP monitoring
1-hour Total Suspended Particulates (1-hour
TSP, µg/m3), 3 times in every 6 days
24-hour Total Suspended Particulates
(24-hour TSP, µg/m3), daily for 24-hour in every 6 days Enhanced TSP monitoring (commenced on 24 October 2014 under Contract No. HY/2012/08)
1-hour Total Suspended Particulates (1-hour
TSP, µg/m3), 3 times in every 3 days
24-hour Total Suspended Particulates
(24-hour TSP, µg/m3), daily for 24-hour in every 3 days |
ASR5 |
|
Pillar Point
Fire Station |
Office |
|
AQMS1 |
|
Previous River
Trade Golf |
Bare ground |
|
ASR6 |
|
Butterfly
Beach Laundry |
Office |
|
ASR10 |
|
Butterfly
Beach Park |
Recreational
uses |
Two (2) Action Level and one (1) Limit Level exceedances for 1-hour TSP
on 7 and 28 September 2018 were recorded by the Environmental Team of Contract
No. HY/2012/08 during the reporting
period. The exceedances were considered not related to this Contract upon
further investigation and the investigation report is presented in Appendix G. No action is required to be undertaken in accordance
with the Event Action Plan as presented in Appendix E.
No exceedance of Action and Limit Levels for 24-hour TSP was recorded in
the reporting month.
Site inspections were carried out on a weekly basis to monitor the
implementation of proper environmental pollution control and mitigation
measures under the Contract. In the
reporting month, four (4) site inspections were carried out on 7, 14, 21 and 28
September 2018.
Key observations and recommendations during the site inspections in this
reporting period are summarized in Table
2.2.
Table 2.2 Specific Observations and Recommendations during the Weekly
Site Inspection in this Reporting Month
Inspection
Date |
Observations |
Recommendations/
Remarks |
7 September 2018 |
Administration
Building Cement bags
should be covered by tarpaulin. |
Administration
Building The Contractor
was reminded to cover cement bags with tarpaulin. |
14 September
2018 |
Administration
Building Chemical
containers were observed not placed in drip tray. |
Administration
Building The Contractor
was reminded to place chemical containers in drip tray. |
21 September
2018 |
Administration
Building Chemical
containers near the generator should be kept on the drip tray. Oil stain near
the power pad should be cleared. |
Administration
Building The Contractor
was reminded to place chemical containers in drip tray. The Contractor
was reminded to clear oil stain. |
28 September
2018 |
Toll Control
Building Stagnant water
was observed in the drip tray. Chemical
containers should be placed in designated storage location. Ventilation
Plant Room Waste should
be disposed of in designated bin and remove from site. |
Toll Control
Building The Contractor
was reminded to clear stagnant water. The Contractor
was reminded to place chemical containers in designated location. Ventilation
Plant Room The Contractor
was reminded to remove the waste from site. |
The Contractor has rectified all of the observations as identified
during environmental site inspections in the reporting month.
Landfill gas hazard monitoring was undertaken by the Safety Officer on
combustible gas (include methane as part of the component) and oxygen to
monitor the risk to workers at the excavation area in September 2018. However, it is noted that carbon dioxide and
methane which are required under the Updated EM&A Manual were not measured. As such, the monitoring data are not
presented in this report.
The Contractor had submitted application form for registration as
chemical waste producer under the Contract.
Sufficient numbers of receptacles were available for general refuse
collection and sorting.
Wastes generated during this reporting period included mainly
construction wastes (inert and non-inert).
Reference has been made to the waste flow table prepared by the
Contractor (Appendix F). The quantities of different types of wastes
are summarized in Table 2.3.
Table 2.3 Quantities of Different Waste Generated in the Reporting
Month
Month/Year |
Inert C&D Materials (a) (m3) |
Inert Construction Waste Re-used (m3) |
Non-inert Construction Waste (b) (kg) |
Imported
Fill (m3) |
Recyclable Materials (c) (kg) |
Chemical Wastes (kg) |
|||
|
|||||||||
September 2018 |
205 |
0 |
22,150 |
0 |
0 |
|
0 |
|
|
|
Notes: |
|
|||||||
|
(a) Inert construction
wastes include hard rock and large broken concrete, and materials disposed as
public fill. (b) Non-inert
construction wastes include general refuse disposed at landfill. (c) Recyclable
materials include metals, paper, cardboard, plastics, timber and others. |
|
|||||||
The Contractor was advised to properly maintain on site C&D
materials and waste collection, sorting and recording system, dispose of
C&D materials and wastes at designated ground and maximize reuse/ recycle
of C&D materials and wastes. The
Contractor was also reminded to properly maintain the site tidiness and dispose
of the wastes accumulated on site regularly and properly.
For chemical waste containers, the Contractor was reminded to treat
properly and store temporarily in designated chemical waste storage area on
site in accordance with the Code of
Practice on the Packaging, Labelling and Storage of Chemical Wastes.
The status of environmental licensing and permit is summarized in Table 2.4 below.
Table 2.4 Summary of Environmental Licensing and Permit Status
License/ Permit |
License or Permit No. |
Date of Issue |
Date of Expiry |
License/
Permit Holder |
Remarks |
Environmental
Permit |
EP-354/2009/D |
13
March 2015 |
N/A |
HyD |
Tuen
Mun- Chek Lap Kok Link |
APCO
Construction Dust Notification |
433493 |
14
May 2018 |
N/A |
GCL |
For
Tuen Mun working area |
Construction
Waste Billing Account |
7030836 |
15
May 2018 |
N/A |
GCL |
N/A |
Chemical
Waste Producer Registration |
5213-422-G2827-01 |
13
June 2018 |
N/A |
GCL |
N/A |
WPCO
Licence for Buildings at C2 area |
|
|
|
GCL |
Public
Notice has been published on 20 August 2018 |
WPCO
Licence for Buildings at C3 area |
GCL |
Public
Notice has been published on 28 August 2018 |
|||
Construction
Noise Permit |
GW-RW0384-18 |
14
September 2018 |
6
March 2019 |
GCL |
For
Toll Control Building, Administration Building, Maintenance Depot and WA18 |
|
In response to the site audit findings, the Contractors carried out all
corrective actions.
A summary of the Implementation Schedule of Environmental Mitigation
Measures (EMIS) is presented in Appendix C. The
necessary mitigation measures relevant to this Contract were implemented
properly.
The landscape and visual (L&V) mitigation measures were also
monitored on weekly basis in the reporting period. The monitoring status is summarized in Appendix C.
Two (2) Action Level and one (1) Limit Level exceedances for 1-hour TSP
were recorded by the Environmental Team of Contract No. HY/2012/08 during the reporting period. The
exceedances were considered not related to this Contract upon further
investigation and the investigation report is presented in Appendix G. No action is required to be undertaken in accordance
with the Event Action Plan as presented in Appendix E.
No exceedance of 24-hour TSP was recorded in this reporting month.
Cumulative statistics are provided in Appendix G.
The Environmental Complaint Handling Procedure is provided in Figure
2.2.
There was no environmental complaint, notification of summons or
successful prosecution recorded in the reporting period.
Statistics on complaints, notifications of summons, successful
prosecutions are summarized in Appendix G.
As informed by the Contractor, the major works for the Project in
October 2018 will be:
· Bar bending,
timber formwork and concreting at Toll Control Building;
· Architectual,
Builder’s Work and Finishing and Electrical
and Mechanical Works at Ventilation
Plant Room;
· Electrical
and Mechanical Works at Northern
Ventilation Building;
· Socket H-piling
at Administration Building;
· Socket H-piling
at Maintenance Depot; and
· Additional land
ground investigation (GI) at Fire Services Department Building and Customs and
Excise Department Building.
Potential environmental impacts arising from the above
upcoming construction activities in the next reporting month of October 2018
are mainly associated with dust and waste management issues.
This Fourth Monthly EM&A Report presents
the findings of the EM&A activities undertaken during the period from 1 to
30 September 2018, in accordance with the Updated EM&A Manual and the
requirements of EP-354/2009/D.
Air quality (including 1-hour TSP and 24-hour TSP) was
carried out in this reporting month.
Two (2) Action Level and one (1) Limit Level exceedances
for 1-hour TSP were recorded by the Environmental Team of Contract No. HY/2012/08 during the reporting
period. The exceedances were considered not related to this Contract upon
further investigation and the investigation report is presented in Appendix G. No action is required to be undertaken in accordance
with the Event Action Plan as presented in Appendix E.
No exceedance of Action and Limit Levels for 24-hour TSP was recorded in
the reporting month.
Environmental site inspection was carried out four (4)
times in September 2018. Remedial
actions recommended for the deficiencies identified during the site audits were
properly implemented by the Contractor.
There was no environmental complaint, notification of summons or
successful prosecution recorded in the reporting period.
The ET will keep track on the construction works to
confirm compliance of environmental requirements and the proper implementation
of all necessary mitigation measures.